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hram777 [196]
3 years ago
5

1

Mathematics
2 answers:
xxTIMURxx [149]3 years ago
8 0

(x-4)(x-4)= 0

x-4= 0 , x-4= 0

x-4+4= 0+4 , x-4+4= 0

x= 4 , x= 4

Answer is x= 4 (C.)

Whitepunk [10]3 years ago
6 0

Answer:

x = {4, 4}

Step-by-step explanation:

(x - 4)(x - 4) = 0 has two real, equal roots:  x = 4 and x = 4.  Notice that subbing 4 for x in this equation results in a TRUE equation.

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a cube has edge length 10 cm. starting at the vertices dots are placed along every edge at 1cm intervals. how many dots will the
Tamiku [17]

Answer:

120 dots

Step by step explanation:

3 0
3 years ago
Trigonometry: <br>1) Work out the bearing from B to C. <br>2) Calculate the bearing of D from B
kakasveta [241]

Answer:

see below

Step-by-step explanation:

a bearing is the angle in degrees measured clockwise from north.

Triangle ABC is a right triangle

Tan C = opp side / hyp

tan C = AB / CA

tan C = 30/30

tan C = 1

taking the inverse tan

tan ^ -1 tan C = tan ^ -1 ( 1)

C = 45 degrees

This is 90+45 degrees from North

135 degrees from north

Tan B = opp side / hyp

tan B = AD/BA

tan B = 45/30

tan B = 3/2

taking the inverse tan

tan ^ -1 tan B = tan ^ -1 ( 3/2)

D = 56.30993247

Add 180 degrees

180+56.30993247

236.3099325 from north

7 0
3 years ago
Simplify this algebraic equation: 3y - 7(5x + 2y)
Taya2010 [7]

Answer: -11y - 35x

Step-by-step explanation:

This problem utilizes the Distributive Property of Multiplication.  It states that: a(x + y) = ax + ay.

Thus, utilizing this property (distributing -7), change the equation into:

3y - 35x - 14y

Then, simply combine like terms to get:

-11y - 35x

Hope it helps :) and let me know if you want me to elaborate.

8 0
2 years ago
Unit 3 Lesson 04.1 Percent Increase and Decrea...
Elena-2011 [213]
Her hair was 45.5 centimeters long
3 0
3 years ago
Plz Help! I will mark brainliest
blondinia [14]

Answer:

the answer is C

(5+3i)-(2+9i) = 3-6i

5 0
2 years ago
Read 2 more answers
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